additional sourceDendy, A. (1922). Report on the Sigmatotetraxonida collected by H.M.S.‘Sealark' in the Indian Ocean. <i>In</i>: Reports of the Percy Sladen Trust Expedition to the Indian Ocean in 1905, Vol. 7. <em>Transactions of the Linnean Society of London.</em> 18 (1): 1-164, pls 1-18.page(s): 28 [details]